Punching-machine.



N0. 858,066. PAT-ENTED JUNE 25, 1907.

PUNGHING MACHINE I APPILIOATIOH FILED HQV. 16. 1906.I I 3 8HBETS SHEETII I I I I 7///// J /@Q c U F I I a INVENTUR WITNESSES: I I I 10 2 W 6we) By m THE mamas PETERS co., WASHINGTON, n. c.

PATENTED JUNE'25, 1907.

w. PEER.

' PUNGHINGMAGHINE. APPLICATION FILED NOV 15. 1906 3 SHEETS-:SHEET 2.

WITNESSES 4 TTOHNEY.

PATEN'TED JUNE 25, 1907.

w. 'FEHR. PUNGHING MACHINE. APPLIGATION FILED NOV. 15, 1906.

3 SHEETS-SHEET 3.

INVENTOR 87 X A TTORNEV.

nnrrnn STATES PATENT ornicn WILLIAM FEI-IR, OF PHILADELPHIA,PENNSYLVANIA.

PUNOHlNG-IVIACHINE.

are. 858,066.

Patented June 25, 1907.

Original application filed December 22, 1906, Serial No- 29Z,946.Divided and this application filed November 15, 1906.

' Serial No. 343.499.

1'0 all whom it may concern:

Be it known that I, WILLIAM FEHR, a citizen of the United States,residing at the city of Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvements in Punching vlachines, of which the following is aspecification.

My invention has relation to a punching machine; and in such connection1t relates particularly to the construction and arrangement of punchholders and to means for adjustaioly supporting the same, and being adivision of an application filed by me under date of December 22nd,1905, Serial No. 292,946.

The principal objects of my invention are first, to provide a punchingmachine with a reciprocating frame or support carrying a series ofadjustable punches adapted to punch or perforate a metal strip, or wirein one operation, at varying distances apart, so as to permit amongothers of the manufacture of heddles of varying lengths and with theusual end mortises and with one or more eyes second, to provide thepunching or perforating machine with mechanism adapted to insure theslotting or piercing of the metal strip in the central longitudinal axisthereof, irrespective of variations in width; third, to provide such amachine with a standard in which the holders for the punches or knivesare adjustably arranged so as to permit of the shifting and locking ofthe holders in any position given; and fourth, to provide the machinewith sectional punch holders so as to permit of the removal andreplacement of punches without disturbing the holders in the positiongiven.

Thenature and scope of my invention will be more fully understood fromthe following I description, taken in connection with the accompanyingdrawings forming part hereof, in which Figure 1, is a view, illustratingin side elevation the punching machine for slotting or piercing a metalstrip at various points, in

one operation, the manner of adj ustably supporting a series of punchesand the holders in a reciprocating frame and the arrangement forpermitting of the use of any desired number of punches therein. Fig. 2,is a crosssectional view of Fig. 1. Fig. 3, is a detail view, enlarged,illustrating in side elevation a punch holder and a punch held inposition by the same. Fig. 4, is a similar view, illustrating partly intop or plan view and partly in section, the punch-holder with the punchremoved therefrom, and a portion of a frame supporting the same. Figs. 5and 6, are cross-sectional views of diiierent portions of the punchholder shown in Fig. 3. Figs. 7 and 8, are detail views, enlarged,illustrating respectively in top or plan view and in side elevation alocking plate for locking certain portions of the punch-holder to itssupport. Fig. 9, is a view partly in elevation and partly in section ofthe locking plate and of a bolt for clamping the plate to thepunchholder support. Figs. 10, 11, 12 and 13, are respectively side andend elevations of punches or knives used in conjunction with thepunching machine shown in Fig. 1. Fig. 14, is a detail view, enlarged,of a metal strip, and illustrating slots of varying length formed by thepunches shown in Figs. 10 to 13 inclusive. Figs. 15 and 16, are similarviews, enlarged, illustrating respectively in elevation and in top orplan view a punching die and a stripping plate carried by the same.Fig.- 17, is a similar view, illustrating in section the die and itsstripping plate. Figs. 18 and. 19, are detail views, enlarged, of metalstrips slotted with the aid of dies and stripping plates shown in Figs.15, 16 and 17. Figs. 20, 21, 22 and 23, are detail views, illustratingrespectively in vertical section and in top or plan view, a guide forthe metal strip, and Figs. 24, 25 and 26, are detail views, illustratingrespectively, in side and endelevation and in top or plan view aclamping arm for adjustably connecting the punching dies to a support.

Referring to the drawings, crepresents a standard to which are securedguides 0 adapted to afford to a frame 0 in the standard c, a range ofreciprocatory movements in a vertical plane. These movements areimparted to the frame 0 by means of leverarms 0 extending from a sleeve0", and held with their rounded heads 0 in engagement with the frame bya removable plate 0.

As shown in Fig. 2, the sleeve 0, carried by a shaft 0 of the standard0, is provided with an arm 6 engaged by a lever-arm c, and the forkedend 0 of the lever-arm c surrounds a roller arranged on a drivingshaft(L supported and actuated by means not shown and is provided with aroller a held in engagement with a cam (1 rigidly secured to thedriving-shaft a hen the shaft a is rotated, the cam a by means of itsthrow portion a raises the lever-arm c", which in turn by means of thearm 0 and lever-arm c depresses the frame 0 in the standard cl As soonas the throw portion c of the cam a has passed the roller 0 thelever-arm 0 by means not shown, raises the frame 0 in the standard 0, toits normal inoperative position.

The frame 0 is provided with a horizontally arranged groove 0,communicating with a slot 0 which groove and slot permit of theconnection of the punch-holder (l, with the frame 0 and of an adjustmentof the same in a horizontal plane in the frame 0 Each of thepunch-holders d, consists of two sections, one forming the support forthe punch (Z or (P, proper, which consists of a plate (1 engaging withits lower laterally projecting end d*, the underside of the frame 0 andwith an extension d, the slot 0 of the frame 0 and the other of aclamping plate d, to removably and adjustably clamp the res pectivepunches to their holders. As shown in Figs. 5 and 6, between theextension (i of the support (Z and the frame 0 in the slot 0 is arrangeda locking-plate d, loosely connected with the extension (i by a bolt (Zwhich engages an opening (i of the plate d, and which serves to lock thesupport (1 to the frame 0 in the following preferred manner. In thelower portion of the support (1 are arranged threaded bolts d, havingoutwardly tapering or conical shaped heads (1 a certain portion of whichis brought into engagement with depressions cl, arranged inlocking-plate d, as shown in Fig. 8. When the bolts (Z are advanced inthe support d the plate d, and extension (i of the support (1 are forcedapart. and thus the same are securely clamped to the frame 0 for apurpose to be presently described. The punch d or LP, is held in avertical position in its holder d, by engaging a depression (1, thereof,and the same for adjustably holding the same in engagement with thesupport d consists aside from the plate (Z of bolts (Z having heads (Zsliding in the groove 0 of the frame 0 and of nuts (Z which by hearingagainst the plate d force the same against the punch and at the sametime the heads d against the frame 0 In order to adjust the punch in theholder d, in a vertical plane to compensate for wear, it is onlynecessary to slightly loosen the nuts d of the bolts (Z after which thepunch can be readily moved in the depression d, of the support (i On theother hand by the removal of the clamping plate 01 from the support (Zby removing the nuts al from the bolts d, the punch can readily beremoved therefrom for sharpening or for rethe punch to the exact placingby another punch, without in the least disturbing the position of thesupport (l in the frame 0 This feature of holding the punch-holdersupport in its proper position, is important as it insures the return ofposition previously occupied by the same. If it becomes necessary toadjust the punch-holder d, in its supporting frame 0 or to entirelyremove the same therefrom, this can readily be accomplished by merelyloosening the nuts (Z and the clamping bolts (1, after which the holder(1 can be shifted longitudinally in the frame 0".

As shown in Figs. 3, 4 and 6, holes (1, arranged in the clamping plate(1 permit of an access to the heads (Z of the clamping bolts (1,arranged in the support (Z to tighten or loosen the same with the aid ofa suitable tool, not shown.

By the above described arrangement of the punch-holder d, in thesupporting frame 0 it is obvious that heddles of varying lengths can beproduced merely by changing the positions of the punch-holders withrespect to each other. Furthermore, any number of slots can be punchedin the metal strip or wire I), by adding the required number ofpunch-holders to the frame 0 The slots punched by the punches or knivesd or (1*, in the metal strip 1), may be in proximity to each other, ifdesired, for which purpose certain of the holders d, are shifted to abutor to nearly so against each other. As shown in Figs. 1, 10, 11, 12 and13, the punches d and d employed are of varying width owing tothevarying length of slots or openings necessary to be punched in the metalstrip or wire I). Normally a heddle requires only two slots If, for theend mortises and one slot 6 for the eye as shown in Fig. 14. However, ashereinbefore stated heddles having any number of slots to form eyes andof any length and width may readily be formed in the metal strip 1), bythe punches d and (1 in conjunction with dies 6, and stripping plates 6to be presently more fully described.

As shown in Figs. 1 and 2, each of the dies 6, and their holders 6 aresupported by a cross-bar c removably secured to the standard c, of thepunching machine. The dies 0, proper, consist of two blocks 6 and 6 oneof which is provided with a depression forming a slot (2 of a sizesufficient to admit of the entrance of a punch therein. The blocks (2and e, are removably secured to their respective holder 6 by clampingbolts 6, preferably bearing against the block 6 and thus holding bothblocks securely in position in the holder e as shown in Figs. 15, 16 and17. To the blocks 6 and e, are removably secured by means of bolts e astripping plate 6 having an opening 0", held in alinement with the slote, of the blocks. In addition to the opening (2, the stripping plate a,is provided with a depression 6 at its under side which is adapted toreceive and to guide the metal strip or wire I), and to hold the same inposition on the dies 6 and e When the punch (Z or (1 fitting the opening6 in the stripping plate 6 and the slot 6", of the dies c and e", isactuated by the frame 0 the same pierces or punches in its descent theslots Z2 and 6 in the metal trip, as shown in Figs. 18 and 19. Thestrips of metal punched from the metal strip b, are forced through theopening 6 arranged in the dieholder 6 and leaves the same through a slot0, arranged in the cross-bar 0 as will be readily understood inconjunction with Fig. 2. The dies 6, in order to render the sameadjustable on the cross-bar c, are held in engagement therewith, byclamping brackets e bearing with one end against the crossbar 0 and withits other end against the stripping plate c of the die 6, as shown inFig. 1. A belt 6 engaging with its head 6 a depression 0, arranged inthe bracket c, and passing through slots, not shown, arranged in thecross-bar (2, permit in conjunction with nuts 6 of the ready adjustmentof the dies 6, on the cross-bar or of the removal thereof, by theloosening of the nuts 6 on the bolts e, as will be readily understood inconjunction with Figs. 1, 24, 25 and 26.

In order to insure piercing or punching of the metal strip or wire I),in its central longitudinal axis and irrespective of its varying width,the following preferred mechanisms are employed :-As shown in Fig. 1, toeach side of the dies 6, are arranged guides 6 each of which consists ofa supporting plate 6 adjustably connected with the cross-bar c, by abolt e passing through the slot 0 of the cross-bar c and secured to thesame by a washer c and nut 6 as shown in Fig. 2. In the plate 6", isarranged a holder e supporting with its upwardly projecting end ayielding arm a, which is held adjustably thereon by a clamp e secured tothe holder 6 as shown in Fig. 20. The free end 0 of the yielding arm 6extends downward and between the same and the holder a, forming a rigidguide arm, passes the metal strip or wire I), and is held by the same inproper position with respect to the dies 6, of the punch ing machine.The yielding arm a, by permitting uneven or broader portions of thestrip or wire I), to readily pass between the same and its holder eprevents a jamming of the strip 5, in the piercing or punching of thestrip in the longitudinal central axis thereof. The guides 6 can bereadily adjusted to accommodate strips of any desired width, by the mereadjustment of the screw 0 and spring 6 bearing from opposite sidesagainst the holder 6, and thus permitting of a shifting of the same inthe plate e", and by the loosening and tightening of the clamp a,bearing down upon the yieldingarm a, after which the same can beadjusted and reelamped in its position, as will be readily understood inconjunction with Figs. 20, 21, 22 and 23.

Having thus described the nature and objects of my invention, what Iclaim as new and desire to secure by Letters Patent is 1. In a punchingmachine, a standard, a support reciprocating in said standard having a.slot, knives, a series of punch holders, each consisting of an outer andinner sec tion, whereof the inner section is arranged to slide in saidsupport and whereof the outer section is arranged to hold one of saidknives in engagement with said first section, means adapted toadjustably connect the inner section of said punch-holders with saidsupport, means adapted to connect the outer section of saidpunch-holders independently of said inner section with said support,both of, the connecting means arranged when loosened to permit of thesliding of both sections of said holders in the slot of said support,and the connecting means of the outer section arranged when separatelyloosened to permit of the disengagement of the knife held by bothsections of each ,of said holders without necessitating the loosening ofthe inner section thereof from said support.

2. In a punching machine, a standard, a support reciprocating in saidstandard having a slot, knives, punch-holders, each con sisting of anouter and inner section, whereof the inner section of said holders arearranged to slide in said support and whereof the outer section thereofare arranged to hold one of said knives in engagement with the firstsection of said holder, means interposed between the inner sections ofsaid holders and said support, means carried by the inner section ofsaid holders adapted to adjustably connect the same with said support byforcing the interposed means against said support, means adapted toconnect the outersecti'on of said holders independently of the innersection thereof by partially engaging the slot of said support, both ofsaid means arranged when loosened to permit of the sliding of bothsections of said holders in the slot of said support, and the connectingmeans of the outer sections arranged when separately loosened to permitof the disengagement of the knife held by both sections of each of saidholders without necessitating the loosening of the inner section thereoffrom said support.

3. In a punching machine, a standard, a support reciprocating in saidstandard having a slot, knives, a series of punch-holders, eachconsisting of an outer and inner section whereof the inner section isarranged to slide in said support and whereof the outer.

section is arranged to hold one of said. knives in engagement with saidfirst section, means adapted to ad ustably connect the inner sec- IIOtion of said punch-holders With said support, means adapted to connectthe outer section of said punch-holders independently of said innersection with said support, both of the connecting means arranged whenloosened to permit of the sliding of both sections of said holders inthe slot of said support, and the connecting means of the outer sectionarranged when separately loosened to permit of the disengagement of theknife held by both sections of each of said holders Withoutnecessitating the loosening of the inner section thereof from saidsupport, dies adjustably arranged below the knife of each of saidholders and adapted to bevengaged by the same to permit of the punchingor perforating the metal strip passing over said dies, guides.consisting of a rigid and a yielding member adapted to permit of theslotting of the metal strip in the longitudinal central axis thereof.

4. In a punching machine, a standard, a cross-bar carried by saidstandard, a support reciprocating in said standard having a slot,knives, a series of punch-holders, each consisting of an outer and innersection whereof the inner section is arranged to slide in the slot ofsaid support, a bar interposed between the inner section of each of saidholders and said support, means adapted to force said bar against saidframe so as toclamp the in nor section of each of said holders to saidsupport, bolts passing through the outer and inner sections of each ofsaid holders and adapted to removably clamp one of said knives to theinner section by engaging said support and by forcing the outer sectionof each of said holders against the inner sections thereof, a die-holderadjustably carried by said cross-bar and arranged below each of saidpunch-holders, dies, consisting of two blocks removably supported bysaid dieholder and forming an opening for the reception of the knife ofone of said punch-holders, guides adjustably carried by said cross-barand arranged at each side of said die-holder and dies thereof, each ofsaid guides having an adjustably rigid and a yielding member, said guidemembers adapted to guide and hold a metal strip in position on said diesso as to permit of the slotting of the same in the central longitudinalaXis by said knives and dies.

In witness whereof, I have hereunto affixed my signature in the presenceof two subscribing witnesses.

WVIL'LIAM FEHR.

Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH.

